Alternatives to HTTP Toolkit
An open-source desktop tool for intercepting, inspecting and rewriting HTTP and HTTPS traffic. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
HTTP Toolkit
An open-source desktop tool for intercepting, inspecting and rewriting HTTP and HTTPS traffic.
Replacements
Listings that take over the same core job as HTTP Toolkit.
Charles
An HTTP and HTTPS debugging proxy that shows all web traffic between a computer and the internet.
Charles is a paid, closed-source HTTP and HTTPS debugging proxy for Windows, macOS and Linux that also works as a reverse proxy, but needs certificate setup on clients.
Fiddler Everywhere
A cross-platform web debugging proxy for capturing, inspecting, modifying and replaying HTTP(S) traffic.
Fiddler Everywhere is closed source and needs a paid licence after the trial, but adds replay, mocking, gRPC support and capture of Android traffic.
Proxyman
Desktop HTTP and HTTPS debugging proxy for capturing, inspecting and mocking network requests.
Proxyman is a freemium, closed-source proxy with a native macOS interface, breakpoints, Map Local scripting and WebSocket, HTTP/2 and GraphQL support.
Reqable
An HTTP debugging proxy and REST API client for desktop and mobile in one application.
Reqable is freemium and closed source, combining traffic capture with a REST API client and offering mobile apps as well as desktop builds.
Similar software
Related functionality, not a direct replacement.
Wireshark
The network protocol analyser: capture traffic and read it packet by packet, with dissectors for hundreds of protocols.
ngrok
A tunnelling agent and gateway that exposes a local app to the internet with request inspection.
httpx
Inspect HTTP services with ProjectDiscovery's command-line toolkit.
websocat
A command-line WebSocket client and server, like netcat or curl for ws:// with socat-style features.
Sniffnet
Shows what your machine is actually talking to, with charts instead of a wall of packets.
Termshark
Terminal interface for tshark that feels like Wireshark.